Heat-insulating casing



OGL 28, 1930. G. J. HEIMBERGER 1,779,814

HEAT INSULATING GASING Filed Dec. 6, 1928 s "//j A, All

\* N SQ l INVENTOR ATTOR N EYS.

Patented Oct. 28, 1930 GEORGE J. HEIMBERGER, or BAYONNE, Nnw Jniis'nv,AssIeNon BABcocira wrncox COMPANY, or BAYONNE, NEW JERSEY, L.CORPORATIONfor, Nriwgnasf-rirY HEA'rfrN'sULArING cAsINa Application filed December1928;* Serial No. 324,182.

This invention relates to a casing that may be made up in panels withmetal plates spaced apart with heat insulating material between thesame. The invention will be understood from` the description inconnection with the accompanying drawings inwhich'Fig. 1 isY a sectionpartly broken away through an illustrative embodiment of the invention,Fig. 2 isa section along the line 2-2 of F 1g.

1, and Figs. 3, t and 5 are lon itudinal sections showing lmodificationso the spacing member. g

1n the drawings reference characters 1 and 2 indicate metal platesspaced apart` with 15 heating insulating material 3 between the plates.`Y

The. plates 1 and 2 are spaced apart by means of rigid spacers ofconsiderable tensile strength that may be made up Qf-two sections 4 and5 to make a circular spacer. The contacting faces ofthe sections Liand 5may be provided with tongues 6 and grooves 7 into which the tongues t.The sections may be provided with an annular groove into which ametallic ring 8 tits.

rihe two halves of the spacer are providedr with recesses 9 spaced aparton opposite sides of its center to receive Vsquare heads 10 Loi: boltsor the like. Each recess 9 in the spacers is rectangular in shape andengages the square head 10 of a bolt on two sides only, so

that the tongue 6 at one halt of the 'spacer q engaging the groove 7 atthe other half of the spacer maintains the two sections 4 and 5 in theirrelative position for preventing the bolt from turning. The other twosides of the bolt head have clearance in the spacer so that the bolthead will not tend to separate the two halves of the spacer when thespacer resists the turning of the bolt a-s the nut is screwed down. Oneof these bolts 11 is provided with a reduced portion 12 extendingthrough the plate 2 and terminating in an expanded head 13 to keep thebolt in place. The other bolt 14 is provided with a screw threaded endthat extends through the hole in plate 1 and a nut 15 is provided fortightening the bolt. A

The spacer made up of the sections 4 and 5 mayT be made of differentsorts of heat insulatingmaterial thatpo-ssess therequisite l' strength.Forl example, the sp'acer'mayy be made of; a molded'andiiredVceramic'body similar, to vporcelain that is used forelectricinsii-lation;purposes.-,\4 p f Since the square vends-of the holtslO dos not touch eachother, but are separated 'by heat insulating material,heat will not'be platesto the other. -At the, same time, the spacersYpossess sucient tensile and compres-1 sive strengthsolthatthe plates 1and. 2 can be secured together iirmly andretain the heatinsulatingmateri'al- 34 between them.'v

l-Diiierent modiiications ofthe.spacers are shownsinFigsrjSf, and5.InFiglrB the spacer 18 is shownas being madeup of porn readilytransmitted tromoneof thefmetal' l celain that was molded. aroundtheheaded ends-of thebolts19 that have screw vthreaded portions extending`,through the plates 1 and `2w1th nufts'20 for tightening thesainefV vInfFig.l 4c the spacer 21.,is,shown"as being provided withthreaded holes 22:extending into the opposite ends thereof to accommodate threadedlbolt's 23that pass through holes in the plates l and 2 and are screwedinto the threaded holes 22 for tightening the plates.

In the modification shown in Fig. 5, the spacer 24 is shown with a hole25 extending klongitudinally through the center thereof and withtransverse holes 26 spaced upon opposite sides of th-e center.Transverse pins 27 extend through the holes 26 and there arecorresponding holes 26 in the Shanks of the bolts 28 which have threadedextensions projecting through the plates 1 and 2 with nuts 29 fortightening the same.

I claim:

1. A heat insulating casing comprisingspaced metal plates, distancepieces between said plates made of stress transmitting heat insulatingmaterial and elongated metallicY members connecting said plates anddistance pieces and separated from each other longitudinally.

2. A heat insulating casing comprising spaced ymetal plates, distancepieces between said plates made of stress transmitting heat insulatingmaterial, elongated metallic members connecting said plates and distanceico Y pieces and separated from; each other longiandbolts extendingthrough said platesand tighten said members.

tudinally, and means to tighten said members. Y

3. A heat insulating casing comprising spaced metal plates, distancepieces between said platesmade of stress transmitting heat insulatingmaterial, lmetallic members connecting said plates and distance piecesand Separated from veach other, and nuts to 4; A heat insulating 'casingcomprising spaced metal plates, distance pieces between said plates madeof rigid heat insulating Ina- N terial and metallic members anchored to`said distance pieces and connected to said plates.

'5. A 'heat insulating casingV comprising spaced metal plates, elongatedseparators ofh'eat insulating material between'said plates,

longitudinally of said separators and terminati'ng short of each other.

,6. A heat insulating casing comprising spaced metal plates, elongatedseparators of heat insulating material between said plates,

'- and bolts extending through said plates and longitudinally of saidVseparators and anchored on Vopposite sides of the centers of saidseparators.

7. A heat insulating casing comprising spaced metal plates, separatorsof heatinsulat'ing material between 'said plates, and aligned boltsextending through said plates into-said separators.

' l8. A heat insulating casing comprising spaced metal plates,separators of heat in'- sulatinggrrmaterial between said plates, alignedbolts extending through said plates into said separators, and means totighten saidk bolts. v

GEORGE J. HEIMBERGER.

